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Harmonize the tailed shapes of i/l with t. (#2048)

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John McWilliams 2023-10-16 15:10:49 -04:00 • committed by GitHub
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commit ed00d984ab
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2 changed files with 11 additions and 36 deletions
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1
changes/27.2.2.md
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@ -1,3 +1,4 @@
* Make the tailed variants of `i` and `l` use the fully-tailed shape even when upright, as is consistent with `t = bent-hook` (#1692).
* Fix `cv44` and `cv99` for `ss13`.
* Fix `cv48` and `cv54` for `ss17`.
* Fix `cv52` and `cv58` for `ss15`.

46
font-src/glyphs/letter/latin/lower-il.ptl
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@ -29,10 +29,10 @@ glyph-block Letter-Latin-Lower-I : begin
set-base-anchor 'topRight' (xMiddle + df.rightSB - df.middle) yTop
# Support shapes
define [TailedDotlessXMiddle df addTopSerif] : df.middle - [if addTopSerif 0 : IBalance2 df]
define [ItalicDotlessIShift df] : (1 - df.div) * 0.2
define [ItalicDotlessIXMiddle df] : begin
return : mix df.leftSB df.rightSB ([StrokeWidthBlend 0.42 0.46] - [ItalicDotlessIShift df])
define [FlatTailedDotlessIXMiddle df addTopSerif] : df.middle - [if addTopSerif 0 : IBalance2 df]
define [TailedDotlessIShift df] : (1 - df.div) * 0.2
define [TailedDotlessIXMiddle df addTopSerif] : begin
return : mix df.leftSB df.rightSB ([StrokeWidthBlend 0.42 0.46] - [TailedDotlessIShift df])
###########################################################################################
# Implementations
@ -42,14 +42,10 @@ glyph-block Letter-Latin-Lower-I : begin
export : define [Hooky df] : df.middle + [IBalance2 df]
export : define [HookyBottom df] : df.middle - [IBalance2 df]
export : define [Serifed df] : df.middle + [IBalance df]
export : define [Tailed df] : if para.isItalic
ItalicDotlessIXMiddle df
TailedDotlessXMiddle df false
export : define [TailedSerifed df] : if para.isItalic
ItalicDotlessIXMiddle df
TailedDotlessXMiddle df true
export : define [FlatTailed df] : TailedDotlessXMiddle df false
export : define [SerifedFlatTailed df] : TailedDotlessXMiddle df true
export : define [Tailed df] : TailedDotlessIXMiddle df false
export : define [TailedSerifed df] : TailedDotlessIXMiddle df true
export : define [FlatTailed df] : FlatTailedDotlessIXMiddle df false
export : define [SerifedFlatTailed df] : FlatTailedDotlessIXMiddle df true
export : define [PhoneticLeft df] : df.leftSB + [HSwToV Stroke]
define Body : namespace
@ -70,9 +66,9 @@ glyph-block Letter-Latin-Lower-I : begin
HSerif.mb df.middle 0 (LongJut * df.div)
set-base-anchor 'trailing' (df.middle + LongJut * df.div) 0
define [IalicTailed df top xMiddle] : glyph-proc
export : define [Tailed df top xMiddle] : glyph-proc
local fine : AdviceStroke 3
local shift : ItalicDotlessIShift df
local shift : TailedDotlessIShift df
local left : xMiddle - [HSwToV : 0.5 * df.mvs]
local right : mix df.leftSB df.rightSB (1.1 - shift)
local rightTerm : Math.max right (left + HookX + df.mvs)
@ -90,28 +86,6 @@ glyph-block Letter-Latin-Lower-I : begin
set-base-anchor 'trailing' [mix left rightTerm 0.5] 0
set-base-anchor 'palatalHookMask' [mix left rightTerm 0.5] (HalfStroke + O)
define [UprightTailed df top xMiddle] : glyph-proc
local tailLength : LongJut * 1.05 * [mix 1 df.div 0.75]
local hookScaleX : mix 1 df.div 0.5
local hookScaleY : mix 1 df.div 1.25
local x0 : mix (0.5 * df.mvs) (0.5 * df.mvs + (Hook - df.mvs + 1) * 0.85 * df.div + [IBalance2 df]) hookScaleX
local x1 : mix (0.5 * df.mvs) ([Math.max (Hook - 0.5 * df.mvs + 1) tailLength] + [IBalance2 df]) hookScaleX
include : dispiro
widths.center df.mvs
flat xMiddle top [heading Downward]
curl xMiddle [Math.max (df.mvs * 1.1) : mix df.mvs Hook hookScaleY]
arcvh 16
g2.right.mid (xMiddle + x0) (0.5 * df.mvs + O) [heading Rightward]
g4 (xMiddle + x1) (0.5 * df.mvs + (1 - 2 * hookScaleY) * O) [heading Rightward]
include : OverrideILMarks df xMiddle top
set-base-anchor 'trailing' (xMiddle + x0) 0
set-base-anchor 'palatalHookMask' (xMiddle + x0) (HalfStroke + O)
export : define [Tailed df top xMiddle] : if para.isItalic
IalicTailed df top xMiddle
UprightTailed df top xMiddle
export : define [FlatTailed df top xMiddle] : glyph-proc
local tailLength : LongJut * 1.05 * [mix 1 df.div 0.75]
local hd : FlatHookDepth df